Hi All,
I have not found evidence of the Assisted Mode for A-GPS (AT+CGPS=1,3) working for anyone with any Simcom module (let alone my SIM7600A-H), but curious if anyone here has. Any time I run CGPS=1,3, I get a return of 0, meaning it's switched off. If you've successfully had mode 3 work, please share your experience here and what your setup was. Maybe it's the supl.google.com server that no longer supports it, but would appreciate any feedback for those who have experience with this. This is desperation. 
Thanks!